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Dietary patterns and schizophrenia: a comparison with healthy controls
Koji Tsuruga1, Norio Sugawara1, Yasushi Sato1
1Department of Neuropsychiatry, Hirosaki University School of Medicine, Hirosaki, Japan.
Neuropsychiatric Disease and Treatment
|May 12, 2015
Summary
A Japanese study found that a diet high in cereal is linked to an increased risk of schizophrenia. This research highlights the importance of dietary patterns in understanding schizophrenia development.
Area of Science:
- Nutritional Psychiatry
- Schizophrenia Research
- Dietary Epidemiology
Background:
- Diet is a potential factor in schizophrenia pathogenesis, but previous research yields inconsistent results.
- Nutrient interactions in mixed diets complicate isolated studies.
- This study investigates dietary patterns and schizophrenia association in Japan.
Purpose of the Study:
- To assess the association between specific dietary patterns and schizophrenia in a Japanese population.
- To identify potential dietary risk factors for schizophrenia.
Main Methods:
- Principal component analysis identified two dietary patterns: "vegetable" and "cereal".
- Dietary intake was assessed using a validated diet history questionnaire.
- Schizophrenia patients (n=237) and healthy volunteers (n=404) participated.
Main Results:
- A "cereal" dietary pattern was significantly associated with an increased risk of schizophrenia (P<0.001).
- No significant association was found for the "vegetable" dietary pattern.
Conclusions:
- The "cereal" dietary pattern is linked to schizophrenia.
- This study is the first to examine the association between dietary patterns and schizophrenia in Japan.
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